DE69026768D1 - Optical disc substrate - Google Patents
Optical disc substrateInfo
- Publication number
- DE69026768D1 DE69026768D1 DE69026768T DE69026768T DE69026768D1 DE 69026768 D1 DE69026768 D1 DE 69026768D1 DE 69026768 T DE69026768 T DE 69026768T DE 69026768 T DE69026768 T DE 69026768T DE 69026768 D1 DE69026768 D1 DE 69026768D1
- Authority
- DE
- Germany
- Prior art keywords
- optical disc
- disc substrate
- substrate
- optical
- disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31—Surface property or characteristic of web, sheet or block
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31511—Of epoxy ether
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19596189 | 1989-07-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69026768D1 true DE69026768D1 (en) | 1996-06-05 |
DE69026768T2 DE69026768T2 (en) | 1996-09-19 |
Family
ID=16349867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69026768T Expired - Fee Related DE69026768T2 (en) | 1989-07-28 | 1990-07-27 | Optical disc substrate |
Country Status (5)
Country | Link |
---|---|
US (1) | US5073427A (en) |
EP (1) | EP0410468B1 (en) |
JP (1) | JPH03130943A (en) |
CA (1) | CA2022027A1 (en) |
DE (1) | DE69026768T2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2194351T3 (en) * | 1997-09-29 | 2003-11-16 | Dow Global Technologies Inc | AROMATIC THERMOPLASTIC SUBSTRATES HYDROGEN AMORPHOS WITH IMPROVED ADHESION. |
DE69836194T2 (en) * | 1997-12-24 | 2007-02-01 | Fuji Photo Film Co., Ltd., Minami-Ashigara | Medium for optical information storage |
US6030680A (en) * | 1998-09-04 | 2000-02-29 | The Dow Chemical Company | Adhesion of amorphous saturated hydrocarbon thermoplastic substrates |
DE19921943A1 (en) * | 1999-05-12 | 2000-11-16 | Bayer Ag | Substrate for optical data storage, based on homo-, co- and/or block polymers of vinylcyclohexane, and has specified moment of inertia and specific density |
ATE343837T1 (en) * | 1999-08-27 | 2006-11-15 | Dow Global Technologies Inc | OPTICAL MEDIA PLATES WITH HIGH DATA DENSITY |
JP4496394B2 (en) * | 2004-03-31 | 2010-07-07 | 日本ゼオン株式会社 | Weatherproof lens or prism |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5877030A (en) * | 1981-10-31 | 1983-05-10 | Hitachi Maxell Ltd | Magnetic recording medium and production thereof |
NL8300422A (en) * | 1983-02-04 | 1984-09-03 | Philips Nv | METHOD OF MANUFACTURING AN OPTICALLY READABLE INFORMATION DISC. |
JPS60147392A (en) * | 1984-01-13 | 1985-08-03 | Nippon Telegr & Teleph Corp <Ntt> | Optical information recording medium |
JPS60168708A (en) * | 1984-02-03 | 1985-09-02 | Mitsui Petrochem Ind Ltd | Novel random copolymer and its production |
JPH07114030B2 (en) * | 1986-08-11 | 1995-12-06 | 三菱化学株式会社 | Optical disk substrate |
JP2720030B2 (en) * | 1987-05-30 | 1998-02-25 | 京セラ株式会社 | Magneto-optical recording element and manufacturing method thereof |
JP2586575B2 (en) * | 1988-05-23 | 1997-03-05 | 三菱化学株式会社 | Optical disk substrate |
JP2668945B2 (en) * | 1988-06-17 | 1997-10-27 | 三菱化学株式会社 | optical disk |
JP2681489B2 (en) * | 1988-07-04 | 1997-11-26 | ティーディーケイ株式会社 | Stamper surface treatment method |
-
1990
- 1990-07-26 CA CA002022027A patent/CA2022027A1/en not_active Abandoned
- 1990-07-27 DE DE69026768T patent/DE69026768T2/en not_active Expired - Fee Related
- 1990-07-27 JP JP2200893A patent/JPH03130943A/en active Pending
- 1990-07-27 US US07/558,537 patent/US5073427A/en not_active Expired - Fee Related
- 1990-07-27 EP EP90114451A patent/EP0410468B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0410468A2 (en) | 1991-01-30 |
DE69026768T2 (en) | 1996-09-19 |
EP0410468B1 (en) | 1996-05-01 |
JPH03130943A (en) | 1991-06-04 |
US5073427A (en) | 1991-12-17 |
CA2022027A1 (en) | 1991-01-29 |
EP0410468A3 (en) | 1992-08-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |